exam2ws03

# exam2ws03 - Last name initial P1 P2 P3 P4 P5 P6 P7 P8 Bonus...

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Last name initial Winter 2003 Last Name______________________________ Physics 175 Exam #2 First Name______________________________ ID # ___________________ Points for each question are indicated in parentheses. Show your work for solutions to questions that require calculations. Explain from where you start to solve the problem and show your math flowing from it for full credit. Surround your result in a box and don’t forget to include the units for your result. If you need more space to finish a question, write BPP (Back of the Previous Page) at the end of the space provided and then complete your work on the back of the previous page. For multiple choice questions, circle the letter which you believe to be correct (or best). In all problems, take the gravitational acceleration g = 10 m/s 2 . Problem 1 (5 points) You are pushing a wooden crate across the floor at constant speed. You decide to turn the crate on end, reducing by half the surface area in contact with the floor. In the new orientation, to push the same crate across the same floor with the same speed, the force that you apply must be about

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exam2ws03 - Last name initial P1 P2 P3 P4 P5 P6 P7 P8 Bonus...

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